Tire Size - Cadillac 2010 Escalade EXT Owner's Manual

Tire Size

The following examples show the different parts of
a tire size.
Passenger (P Metric) Tire
(A) Passenger (P Metric) Tire
States version of a metric tire sizing system.
The letter P as the first character in the tire size
means a passenger vehicle tire engineered to
standards set by the U.S. Tire and Rim
Association.
(B) Tire Width The three digit number indicates
:
the tire section width in millimeters from sidewall
to sidewall.
7-60
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The United
:
(C) Aspect Ratio A two digit number that
:
indicates the tire height to width measurements.
For example, if the tire size aspect ratio is 75, as
shown in item C of the light truck (LT Metric) tire
illustration, it would mean that the tire's sidewall is
75% as high as it is wide.
(D) Construction Code
indicate the type of ply construction in the tire.
The letter R means radial ply construction; the
letter D means diagonal or bias ply construction;
and the letter B means belted bias ply
construction.
(E) Rim Diameter Diameter of the wheel in
:
inches.
(F) Service Description
represent the load index and speed rating of the
tire. The load index represents the load carry
capacity a tire is certified to carry. The speed
rating is the maximum speed a tire is certified to
carry a load.
A letter code is used to
:
These characters
: